package com.tjbklx1.thread.chap02.practise04;

public class Test {
	
	public static void main(String[] args) {
		
		UserInfo userInfo = new UserInfo("Alice", "ABC");
		System.out.println(userInfo);
		StringBuffer info = userInfo.getInfo();
		info.replace(12, 17, "BBC");
		System.out.println(userInfo);
	}
}
